PISTON-BALANCE 9G9920 - Caterpillar

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Note: The volume of the air in the water separator is small. Usually, priming the fuel system is not necessary if only the water separator element was changed.
Illustration 1 g02713685
(1) Primary Fuel Filter (2) Water Separator (3) Drain (4) Secondary Fuel Filter (5) Priming Pump (6) Priming Pump Switch
Stop the engine and fully open the hood. The fuel priming pump is located to the left of the primary fuel filter on the right side of the machine. This machine is equipped with an electric fuel priming pump. The toggle switch for the pump is located next to the priming pump. Operate the fuel pump for approximately 60 seconds.
Start the engine.Note: Additional priming may be needed if you are priming because of the following circumstances:
The engine will not start.
The engine starts but the engine continues to misfire.
The engine starts but the engine continues to emit smoke.
The engine has run out of fuel.
The fuel injectors have been removed from the engine.Operate an electric fuel pump for approximately 30 seconds for this additional priming.